Carbureter.



W H. KRUEGER.

CARBURETER.

APPLICATION FILED JUNE 0. I912. I Patented May16,191(1 2 SHEETSSHEET I.

llllilllllllrll- 7 W. H. KRUEGER.

CARBURETER. APPLICATION FILED JUNE I0, 19l2.

l 1 83,08 1. Patenteii May 16, 1916.

- V T I $7.9.

UNITED idTATF-fi WILLIAM PATENT oFFIoE.

'KRUEGER, OF MILNAUKEE, WISCONSIN.

CARBURETER.

1 183 519 3 Specification o f Letter P Patented May 16, 1916.

Application filed June 10, 1812 Ser/iiil No. 702,715

To all win/m 72 Hwy concern Be it known that I. 7}.LIAM H. KRUEGER, a citizen of the Unitedldtates. residing in lllilwaultcc. in the count of Milwaukee and State of ll'isconsin, have invented new and .i'onal view thereof taken on line 33 of useful lmprm'ements in Carburetors; 0t Fig. 2; and Fig; l is a horizontal.sectional which the following is a description, referview of the upper portion of the carbureter ence being had to the accompanying dra wtaken on line l ft of Fig. l. ing's. which are a part of this specification. Referring to the drawings the numeral 8 10 This invention relates to improvements in indicatesthe float chamber and l0 and Ll carbureters for internal combustion engines. the three carbnreting chambers formed in- One of the objects of the invention to tegral therewith and spaced ,equi-distant provide 1 carburetor which is simple inirconfrom each other. Nozzles 12 Ktendihg at struction. economical in the use of volatile an angle into the carbureting chambers from 15 fluid and is easily controlled. the float chamber and controlled by needle A further ob sct of the invention is to provalves 13 which extend through the bottom vide a cerlmretcr with a multiplicity of portion of said float chamber, are adapted to valve controlled nozzles fed from a supply the volatile fluid to said cal'blll'eting single tloat controlled chamber and which chambers. has independent carbureting chambers pro- The lower portions of the carburctinp; vicled with inlet and outlet check *alves. chambers are provided with spring con A further object of the invention is to pro trolled check valves l-l which are adapted to vide a carburetor in which the independent normally close the air inlet openings '15 v carhnret-ing chambers are in communication *formed in the bottom walls oft-he carbu with a single feed pipe which adapted to voting chamber. These check valves and be connected to the "italic port of an intheir seats are tapered to provide for a ternal combustion engine. gradual opening of said valves and a more A further object of the invention is to prodirect passagejfor the air. vide a carburetor, in which an independent A float 16 positioned in the float chamber supply nozzle and a carbineting chamber are and provided with a valve 17 serves to autopro tied for supplying and vaporizing a matically maintain a predetermined volatile minimumamonnt ot the volatile fluid for fluid level \vithinthe chamber slightly bestarting; an engineand for running at relow the nozzle openings. The valve 17 is duced speeds. 7 adapted to close the volatile fluid inlet duct 8 A further object of the invention is to pro- 18 and stop the flow whenthe fluid reaches vide a carbureter in which the multiplicity the desired level. This duct is connected to of cal-bursting chambers are opened and a source of supply by means of a pipe 9. closed in successive order to supply the The three carlniretinp chambers commupower mediinn' to the intake pipe. nicatc with a converging chamber 20 which 49 A further objectof the invention is to may be termed a union by means of elbow provide a carbnreter in which the direct communication of the carbureting chambers to the feed pipe serves to greatly eliminate .condensation and thereby facilitate the starting oz" theen'gine.

A further object or" the invention is to-provicle a carburetor with check valves having tapered seats to permit fine gradations of opening and greater flexibility of control. i

With the above, and other objects in View, the invention consists of the improved earbureter and its parts'and combinations as set forth in the claims.

In the accompanying drawing in which samepart-s in all, of the views: l ignre l is a vectical sectional view ofthc improved carbireter taken on hue l l of Fig. 2; Fig. 2

a top view thereof; Fig. is a vertical secpassa ieways 21 which extend at an angle from the upper portions of said chambers to the union. The passageways 21 are of less diameter than the carbureting chambers 10 and the lower ends of the elbow passageways are tapered to form valve seats 22 which are controlled by tapered check fvalves23. The vertical stems 24 of the check valves extend through the elbow passageways and are provided with enlargements 01; heads on their upper ends and coiled-springs 25 surronnif ing the stems and interposed between the'em largements and the elbow passageways serve to yielding y hold the valves-1n closed posithe same reference characters indicate the tions. The taper of the valves and the valve open position while the an);

tlisim seats permits fin 1." gmilnate if the ordinary flat valve soutw A flange coupling time per end of the 1 videcl for bolting the ciirbure t take port of an "ntornal eolnbusn This coupling is )2.'0Yl(ll with on flange 27 spaced 21 short distance ob lower encl of the coupling and the up portion of the converging tube is also vided with a, similar thum :28 sp 'cl a slight distance from the coup; town an. annular recess to aoooimin a cam ring 30. s can; ring is if JLl ii A mounted in the recessed poi'tmn laetvvoen the two flanges and is PlOYlClLL'l v. vh also no.

concentric cams ill, and "l adapted to engage- 618- he valve stems and torso s Wni'clly in successive onjler \Yll' cam ring is turned,

A small auxiliary Corbin-eta vided for initially starting for running at ininiunnn ilinry carburetor cor .i ing chamber 35 proviiLl ti'olleil air inlet, cheek stems of the clmznboi I i trolled eheel: 'ulve consiolhns .ilb m 4 charge 01 vapor from the omeeml on The stem ot tb'i Cll-QL stem. 4 U valve extends through the li'Tl-sl' end 0? its l stem of the chamber and is 121". an enlargement or llofi il i to be engaged by tho 211' com 39 depending ii'o Thecnnis iu'e positimiei wit the valve stem lie-oils that when ring is turned the o1 engage the iuixillory molly to its full open movement of the mini V"- csni 31 to eng'n chamber and gradually remains in open position ment of the cum ring \vi to lilzewise open tho valve 2. o 10, while the valve. of the C mains in open position. ment of tho emn ring will 0 v. valve 2% of the chamber ll "in. Al other similar valves hold in open The auxiliary cor meter is su'pgiiiez volatile fluid through the (loot i communicates with tho limit ohmthe supply is eonti'oll-zrd by means o ilinry needle valve ll. l 1 3(1) mretml a; is drawn throiigh tho oisvlhu which is adapted to also be eoi' intake poi-t (not shown} oilan in bustion engine.

In operation the millimeter connected to internal combo on. gino Hort connections of the with the converging condensation and tho engize to start description will be toil for the oin-pose the greatest i'nnge eniion is;

float -C' (ililhllQLCi V a said Cz\ll)1li'illl clmmb moon-1i i i i ll float loom wires controlling the ml- 1 the mnlmi'eting sham bets on o1. soul mu'bm with 1' 55111306581. n31 opening tli-c, supply of mix- HUN. 2?.

late

successively engaging the duct valves to "control the operation of the carbureting the carbureting chambers.

1 chambers. v

4. A carburetor, comprising a float chamher, an auxiliary carbureter positioned adjacent to the float chamber and deriving volatile fluid therefrom, a plurality of carbureting chambers extending alongside of the float chamber, nozzles extending from the float chamber, to the carbureting chambers, check valves. controlling the admission of air to the carbureting. chambers,

ducts extending from the carbureting chambers, valves controlling the ducts, and an adjustable member provided. with a plurality of cam portions for successively engaging the auxiliary carburetor and the duct valves to control the vapor discharged from 5. A carburetor, comprising a float chamher, an auxiliary carburetor provided with an air inlet check valve and a valx e controlled outlet duct, a nozzle extending from the float chamber to the. auxiliary carbureter, a plurality of carbureting chambers positioned alongside of the. float chamber,

4o ing a float chamber provided with a float for maintaining a predeterminedfluid level,

a plurality of carbureting chambers positioned adjacent thereto and deriving fluid v therefrom, check valves controlling the admission of air to the'carbureting chambers,

independent positively closing valves controlling the discharge of vapor from the carbureting chambers, and a'cam member controlling the valves;

7 A multiple nozzle carburetor, comprising a float chamber provided with a float for maintaining a predetermined fluid level, a plurality of carbureting chambers positioned adjacent thereto and derivlng fluid therefrom, check valves controlling the admission of air to the carbureting chambers,

independent normally closed valves controll-.

ing the discharge of vapor from the carbureting chambers, and means positively controlling the successive opening of .the valves 8. In carbureter, the combination, with a float chamber provided with a float for maintaining a predetermined fuel level, of a plurality of carbureting chambers, a noz 'zle in each. of said carbureting chambers communicating with said float chamber,

valves controlling the admission of air to said carbureting chambers, a mixture outlet, ducts connecting said outlet with each of said carbureting chambers, positively opening and closing valves for-controlling the admission of mixture to the ducts, and means for controlling the successive operation of said valves.

In testimony whereof, I aifix my signature, in presence 'of two Witnesses.

.WILLIAM H. KRUEGER.

Witnesses: C. H. KEENEY,

CLARA V. MUEHLBAGH. 

